update to .net 8

.github/workflows/10-dotnet.yml

@@ -30,7 +30,7 @@ jobs:
       - name: Setup .NET
         uses: actions/setup-dotnet@v3
         with:
-          dotnet-version: 7.0.x
+          dotnet-version: 8.0.x
       - name: Set up dependency caching for faster builds
         uses: actions/cache@v3
         with: